Fourteen Escherichia coli O157 strains isolated from cattle and pigs in Poland and in Germany were investigated, using PCR, for the genetic markers associated with Shiga toxin-producing E. coli (STEC). Only two strains, both of cattle origin, were positive for the fliC (H7) gene and could be classified as O157 : H7. Nine isolates had stx shiga toxin genes, either stx1 (1 strain), stx2 (4 isolat...

The genotype Blastocystis hominis is highly polymorphic. Therefore, a genetic marker would be a powerful tool for the identification or classification of B. hominis subtypes and could be used as a means to resolve the transmission route or origin of the parasite. To this end, 32 B. hominis isolates were collected from patients and/or staff members of two long-term health care facilities (facili...

The changes caused by diesel oil pollution in the metabolically active bacterioplankton from an oligotrophic coastal location were analysed in laboratory microcosms (44 l) using 16S ribosomal RNA (16S rRNA) as molecular marker. The aim was to simulate typical hydrocarbon pollution events in a coastal area exploited for seasonal touristic activities. The experiment consisted in addition of low a...

Pyocine production typing and restriction fragment length polymor¬ phism (RFLP) of plasmid DNA with BamHl (BamHl RFLP) were com¬ pared for intraspecies discrimination of 1 00 Pseudomonas aerugi¬ nosa isolâtes. Typeability of pyocine production method was 76% while that of BamHl RFLP was 100%. BamHl RFLP was highly discriminative so as to distinguish unrelated isolâtes of close lineage. However,...

IS901 RFLP analysis of 36 Mycobacterium avium subsp. avium (MAA) isolates from 15 pheasants (Phasianus colchicus) and two goshawks (Accipiter gentilis) from four pheasant farms was performed. Using this method, six different IS901 RFLP types (E, F, G, M, Q, and V) were identified. The distribution of IS901 RFLP profiles was tightly linked to individual flocks. Matching IS901 RFLP profiles obser...

Callipyge (CLPG) is a candidate gene with significant effect on meat quality and growth in sheep. The aim of this study was to investigate the polymorphism CLPG Akkaraman breed. In study, DNAs obtained from blood samples 50 sheep used as material. CLPG/Faq1 examined all individuals using method PCR-RFLP. Only A allele AA genotype were detected after PCR-RFLP procedure. This first which investig...